Re: emacs rendering comparisson between emacs23 and emacs26.3

[martin rudalics]

>> As a matter of fact, it is slightly better.  Still, Emacs locks down
>> after a few scrolls in a similar way as without it.
>
> And can it similarly lock down for a long time? Or does it unfreeze quickly?

It doesn't lock down always.  But when it locks down it takes about the
same time to recover.

> What about other major modes? If you create a big JS file and try the
> same experiment in js-mode? Or create a long Elisp file and do the
> same in emacs-lisp-mode (you can copy-paste a lot of time the contents
> of some existing file)? Or take any of those files, switch to
> fundamental-mode and do the same.

I don't use JS so I have no idea how to experiment with it.  Scrolling a
large Elisp file never locks down Emacs.  But note that the problem with
scrolling happens already with dispextern.h whose size is about a tenth
of that of xdisp.c.

martin